M_PI              572 complex.c      	if (arg == M_PI) {
M_PI              581 complex.c      	else if (arg == M_PI_2+M_PI) {
M_PI               40 include/ruby/missing.h #ifndef M_PI
M_PI               44 include/ruby/missing.h # define M_PI_2 (M_PI/2)
M_PI               72 math.c         	    return DBL2NUM(M_PI);
M_PI               73 math.c         	return DBL2NUM(-M_PI);
M_PI               79 math.c         	    const double dz = (3.0 * M_PI / 4.0);
M_PI               83 math.c         	    const double dz = (M_PI / 4.0);
M_PI              955 math.c         #ifdef M_PI
M_PI              957 math.c             rb_define_const(rb_mMath, "PI", DBL2NUM(M_PI));